查询词典 Ld.

LD is a kind of high toughness Cold-work die steel with excellent performance.

强度韧性是一般冷作模具钢的两倍，具有良好的耐磨，强度，韧性。

The non-spherical lens is another shaping system that is used to collimate the beam of LD, and the theoretic performance could be perfect.

非球面柱透镜是另一类特殊结构的柱透镜，在用于半导体激光束准直时，理论上可以达到完全准直的效果。

This information shou ld be provided in the directions or in the color chart.

我喜欢不断地重复使用塑料纱的数字标记我的牙线。

This information s hou ld be provided in the directions or in the color chart.

我喜欢不断地重复使用塑料纱的数字标记我的牙线。

The process conditions for trial production of low density polyethylene speciality resin (LD 163) for heat shrinkable film were selected after determining the speciality resin′s quality index and conjunctively based on the dependence of LDPE resin′s performance and relative mass and its distribution on the resin′s molecular chain structure, such as branched short and long chains.

确定了热收缩膜专用树脂LD163的质量指标后，根据低密度聚乙烯树脂性能与相对分子质量及其分布、短链支化、长链支化等结构的对应关系拟订了其试生产工艺条件。

This testing system has simple structure of hardware and low cost and perfect function.

该系统包括1台便携式LD特性测试仪和1套测试软件。

Coupling systems between LD and optical fiber are separated into two categories: micro-lens optical fiber system and disjunct lens one.

针对由柱透镜和聚焦透镜组成的组合透镜耦合系统中存在的封装和调试困难等问题，提出了：用一段直径为600μm的裸石英光纤代替柱透镜，对半导体激光器输出光束进行准直整形；用球透镜光纤对准直后的光束进行聚焦，直接实现和光纤耦合，来代替聚焦透镜和光纤耦合的环节。

They could not learn: they could not benefit from experience because this emotionless wor ld would lack rewards and punishments.

人们能够学习的原因是：人的经历能够带来奖励或惩罚。

I will stay as long as I can continue to learn and to grow in my fie ld.

只要我能在我的行业力继续学习和长进，我就会留在这里。

A: I will stay as long as I can continue to learn and to grow in my fie ld.

只要我能在我的行业力继续学习和长进，我就会留在这里。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。